VaultDrop - Secure Digital File Storage and Encrypted Transfer System with Virus Scanning

What is VaultDrop?

VaultDrop is a self-hosted file storage and transfer system built with Python Django. It lets users upload files with mandatory passcode protection, scan them for viruses using ClamAV, and share them with anyone through unique email links. The recipient does not need an account to download the file. They just open the link, enter the passcode, and get the file.

This project solves a real problem that most college students and working professionals face daily. Sending large or sensitive files through WhatsApp or email attachments is neither secure nor reliable. VaultDrop gives you a private, self-hosted alternative where every file is checksummed, virus-scanned, and locked behind a passcode before it ever reaches the recipient.

Why Choose VaultDrop for Your Final Year Project?

If you are pursuing BCA, MCA, BTech, or BSc IT and looking for a web development final year project that goes beyond basic CRUD operations, VaultDrop is built for you. It covers file handling, authentication, email integration, virus scanning, rate limiting, and SHA-256 hashing in a single application. Your project guide will appreciate the depth of security implementation here.

The project also comes with a pre-built project report that you can submit directly or customize for your college format. If you need help setting it up on your machine, our Project Setup + Source Code Explanation service walks you through every file and function.

Core Features

Passcode-Protected File Upload

Every file uploaded to VaultDrop requires a passcode between 6 and 64 characters. This passcode is hashed using Django's built-in make_password function, so even the server admin cannot see the original passcode. Users can upload up to 5 files per batch with a combined size limit of 1 GB. Each upload also lets users set an expiry window ranging from 1 hour to 30 days, or a custom duration.

ClamAV Virus Scanning

Before any file is stored, VaultDrop runs it through ClamAV using the pyclamd library. If ClamAV is unavailable, the system falls back to python-magic for MIME type verification. This two-layer check blocks executables and known malware from entering the system. Over 25 dangerous file extensions including .exe, .bat, .ps1, .jar, and .sh are blacklisted at the application level.

SHA-256 File Integrity

Every uploaded file gets a SHA-256 checksum computed and stored in the database. When the file is downloaded later, the system can verify the checksum to confirm the file has not been tampered with during storage.

Email-Based Secure Transfer

This is where VaultDrop stands apart from regular file managers. Users can send any stored file to any email address. The system generates a UUID-based access link that is practically impossible to guess. The recipient opens this link, enters the correct passcode, and downloads the file. No account creation, no sign-up forms. If someone enters the wrong passcode 5 times, the transfer link locks for 30 minutes.

File Manager with Bulk Operations

The built-in file manager lets users browse, search, sort, rename, and delete their files. Bulk operations are supported through AJAX, so users can select multiple files and delete or rename them in one action. File metadata including MIME type, upload date, expiry date, and checksum is viewable for each file.

Authentication and Security

VaultDrop uses a custom user model with email-based authentication. There are no usernames. Password strength is enforced with rules for uppercase, lowercase, digits, and special characters. The system also blocks sign-ups from disposable email providers by checking against a list of 300+ throwaway domains. Sessions expire after 1 hour or when the browser closes. Rate limiting through django-axes locks accounts after 5 failed login attempts for 5 minutes.

Input Sanitization

All user inputs are sanitized using the bleach library, which strips any HTML tags before processing. This prevents XSS attacks and injection attempts across every form in the application.

Technology Stack

The backend runs on Django 4.2+ with Python 3.10+. SQLite handles the database in development, with PostgreSQL recommended for production. The frontend uses vanilla JavaScript with Lucide icons and over 1,200 lines of custom responsive CSS. File uploads use drag-and-drop with AJAX for a smooth user experience. Email delivery uses Gmail SMTP with TLS encryption. For production, Gunicorn serves as the WSGI server, with Celery and Redis available for background task processing.

Project Architecture

VaultDrop is organized into three Django apps. The accounts app handles user registration, login, and session management with a custom email-first user model. The storage app manages file uploads, downloads, metadata, and the file manager interface. The transfer app handles secure file sharing through UUID tokens and passcode verification. Each app has its own models, forms, views, templates, and URL configuration.

The three core models are CustomUser (stores user credentials), FileRecord (stores file metadata, hashed passcode, SHA-256 checksum, and expiry date), and TransferRecord (links a file to a recipient email via a UUID token with rate-limit tracking).

Who Should Use This Project?

This project is ideal for BCA, MCA, BTech CSE, and BSc IT students who need a final year project that demonstrates real-world security concepts. It covers file handling, cryptographic hashing, virus scanning, email integration, rate limiting, and session management. These are topics that come up frequently in viva and project defense sessions.

If your college requires a cybersecurity-related project, VaultDrop fits perfectly because security is baked into every layer rather than being an afterthought.

What You Get

When you purchase VaultDrop from CodeAj Marketplace, you receive the complete source code, a ready-to-submit project report, and installation documentation. If you want us to implement a custom idea on top of this project or need a custom research paper or PPT for your submission, check out our add-on services including Idea Implementation, Custom Project Report, Research Paper, and PPT creation.

Management and Maintenance

VaultDrop includes a Django management command called cleanup_expired_files that automatically marks expired files and removes them from disk. You can schedule this with a cron job to run every 15 minutes. The Django admin interface provides full control over users, files, and transfer records for administrators.